研究：熬夜通宵的危害到底有多大？

Sleep deprivation may raise the risk of getting Alzheimer's disease.
睡眠不足可能會增加罹患阿爾茨海默病的風險。

Just one sleepless night has been found to cause the build-up of a protein linked to the devastating condition.
研究發現，通宵熬夜一天就會引起與這種可怕疾病有關的一種蛋白質的增長。

A night without sleep increased the beta-amyloid protein in part of the brain.
通宵熬夜會增長大腦部分區域中的乙型澱粉樣蛋白的含量。

People with mild memory loss have 21 per cent more beta-amyloid in their brains than healthy elderly people, while those with Alzheimer's disease have 43 per cent more beta-amyloid.
患有輕度記憶喪失症的人，其大腦中的乙型澱粉樣蛋白的含量比健康老年人的要高21%，而那些患有阿爾茨海默病的人，其大腦中的乙型澱粉樣蛋白的含量則要比健康的老年人高43%。

Sleep is vital in clearing away beta-amyloid, which can form clumps in the brain to block important pathways for memory.
睡眠對清除乙型澱粉樣蛋白至關重要，而這種蛋白能在大腦中結塊並阻塞記憶的重要通道。

Dr Ehsan Shokri-Kojori said: 'The increase in beta-amyloid in the brains of people who were sleep-deprived is likely to be a harmful process.
艾森·肖克里-科傑裏博士表示：“睡眠不足的人大腦中增加乙型澱粉樣蛋白的過程可能是有害的。

'A reasonable prediction based on the results would be that poorer sleep habits create a risk for Alzheimer's disease.'
“基於該結果的合理預測是，不良的睡眠習慣會造成罹患阿爾茨海默病的風險。”

Sleep may play an important role in a natural 'waste disposal' system that clears potentially harmful material including amyloid-beta out of the brain, scientists believe.
科學家相信，睡眠可能在人體正常的“廢物處理”系統中發揮着重要的作用，它可能會清除大腦中乙型澱粉樣蛋白等有害物質。

Dr David Reynolds said: 'The study suggests that one night of sleep deprivation can raise levels of the hallmark Alzheimer's protein amyloid, strengthening suggestions that sleep is important for limiting the build-up of this protein in the brain.'
大衛·雷諾茲博士表示：“研究表明，通宵熬夜一天可能會增加阿爾茨海默病標誌性澱粉樣蛋白的含量，這進一步表明睡眠對於抑制大腦中這種蛋白質的增長十分重要。”